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一番よく使われている表現はconvexです。
凸(convex)と凹(concave)は、形状や曲線の特性を示す用語です。凸は外側に膨らんだ形状で、どの2点を結ぶ直線が曲線の上にあることが特徴です。一方、凹は内側にくぼんだ形状で、直線が曲線の下に位置することが多いです。数学や経済学では、これらの特性が最適化や効用の分析において重要な役割を果たします。視覚的には、凸は山のような形、凹は谷のような形として捉えられます。
The surface of the lens is convex and helps to focus light.
A convex shape can be found in many architectural designs.
The convex hull of a set of points is the smallest convex shape that contains them all.
In mathematics, a convex function has a unique minimum point.
The convex mirror provides a wider field of view than a flat mirror.
She drew a convex polygon with all its interior angles less than 180 degrees.
The convex nature of the bubble made it appear larger than it actually was.
A convex lens is used in microscopes to magnify small objects.
The convex side of the object faced outward, creating a bulging effect.
Understanding convex shapes is essential in geometry and design.
The mirror has a concave shape that magnifies the reflection.
The artist used a concave lens to create a unique visual effect.
In geometry, a concave polygon has at least one interior angle greater than 180 degrees.
The concave surface of the bowl allows for easy mixing of ingredients.
She admired the concave design of the new building's facade.
The concave nature of the lens helps to focus light more effectively.
He explained how a concave mirror can be used in telescopes.
The concave section of the park was perfect for hosting outdoor events.
The concave shape of the dish made it ideal for serving pasta.
In physics, the concave curvature of a surface can affect the path of light rays.
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